1939

6.0

1930

7.7

1932

0.0

1937

7.9

2002

7.6

2008

6.6

1979

6.4

1926

4.0

1930

6.0

1982

4.7

1995

7.0

1978

6.5

2005

5.7

2017

6.3

1975

6.5

2006

6.6

1995

6.3

2005

6.2

1979

6.7

2017

6.1